sutton



J. H. SUTTON.

. Hot Air Furnace. y I

No. 12,533. Patented March 13, 1855.

3 am; Ma amm State .of 7 Pennsylvania, have invented a new a following is ajfull'and exact description thereof,reference being had to the accom- *panying drawings, making a part of this specification, Figure 1 being a vertical section in thealineTg yofjFigxB; Fig. 2, a vertical sectioninthe line a z ofFig. 3 Fig. 3, i a horizontal section in th line m m of Fig. l; Fig t, a horizontal section in the line w w Jof Fig. 2; Fig.5, a horizontal section (drawn g ona smaller scale) in the line a). o of Fig. 1; 1 and Fig. 6 is a planofthe under side of the pfurnace. h t

Similar letters indicate like parts in all the figures. 4 1 My improved air heating furnace has two separate and distinct fire chambers A, B, oombinedwith jthehot air chamber D, and with the central smoke "pipe C, substantially represented in the drawings and hereinafter set forth.

The outer cylinder n,i'ncloses all of the other parts ofthefurnace. The short cylinlderl ai,supports the plate Z, and all the intejrior portions of the furnace. The plate Z, occupies the entire space within the outer cylinder n, with thefexception of the open- *ings for the gratesof the furnaces A, B, and

the air. apertures represented in the drawings. The space withinithe short cylinder 1 a, forms the ashxpit to both furnaces. v The grates ofttherespeetive furnaces A, and B, are oft-he shape represented in the i a, 0, and are combined with the crank shaft i o, by means of the leversr, r, and s, s, and i thelinks t, t, as represented in Figs. 2 and 6.

The crank shaft isplaced in suitable bearings below the p ate Z, and the crank at its outer end is received intojthe guard a, on

,[pin d, which passes through the said guard,

.fservestometain the grates in their proper posit-ion. is de'sired to shake the rgrates the pin d, is? withdrawn, and the crankon the end of the shaft 9, isworkeol back andforth, which causes the grates t0 vibrate on their pivots: jThe links t, t, which i i connect. the leversr r,r,that descend from the shaftg, to the levers s,- s, that descend from the-grates,are securely hinged to the- @UNITEnsrA Es and useful Improvement in Air fleating Furnaces and I do hereby declare that the drawings; the said grates rest upon pivots ;the outerside of thebnter casing nil-The i PATENT OFFICE. 1 on HOINESDALE; PENNsY VaN IA.

V p it i Earn-HEATING FU N CE. i i i s eeification ofi iettergiaant 12,533, g ad" March 13, 1 855. y

i it y i i I former, are connected to the latter in 1 Be a knownwthat-I, AMES: assess; a Honesdalej, infthe jcounty of Wayne and such amanner (shown in Fig- 6) that they can be readily detached, whenever it may be necessary, to turn the grates up sidewis'e todischargetheir contents into the ash pit. The sides of the fire chamber A are indicated by f, f, f, f, and the sides of the fire chamber B are indicated by b, b, b, b. The tops of the portions f, f, of the furnace A, are united to the positions 6, b, of the furnace B, by the radial pieces h, h, and segments 2" 11 i ishown in Figs. 1 and 3;--and both furnaces are covered by the annular plate i, which accurately and tightly fits tothe sides of the furnaces and to'their conducting pieces 6, 2". The annular plate 2',

is a sufficient distance above the radial connecting plates h, h, to allow the gaseous products of combustion to pass freely from bothfurnaces into the smoke pipes g, 9,

which descend from perforations 1n the said radial plates h, h, as shown in Fig. 3. The said descending smoke pipes g, g, are con nected at their lower ends to the central ascending smoke pipe C, as shown in Fig. l. The bottom of'the main smoke pipe C, is closed by the plate 6, represented in Figs. 1, 2, and 3. The hot air chamber D, is inclosed by the casing m, and it will be perceived that the air in said chamber has free access to all sides of both furnaces, and likewise to all sides of the ascending smoke pipe G, and the descending smoke pipesg, 9, thereby forming a great amount of heating surface. It will also be perceived, that either of the furnaces, can be used without the other, and that a single furnace-will heat the air efliciently in the air chamber; which enables either of the furnaces to be cleaned out and replenished with fresh coal, without disturbing the other; and when the weather is not too severe, only one furnace need be used. Air is admitted to the hot air which discharge a portion of their contents under the plate 6, and the remainder against and below the angles of the smoke pipes g,"g. The-air which enters under the plate 6, passes up through the apertures therein which open-into the space between the central smoke pipe 0-, and the inner portions f, and b", of the two furnaces; and the air which enters from the said conductors *D, D, above the said platee, passes up around the descending smoke pipes g, g, in

' the space between the sides f, f, and b, b,

of the two furnaces. Air is also admitted through suitable openings 10, in the outer casing n, and descending in the space H, between said casing and the casing m, passes through the series of apertures in the plate Z, into the upper portion of the water chamber G, and thence passes up through an other series of apertures in the plate Z, into the air heating chamber D. The hot air may be conducted from the hot air chamber through any suitable number of educt-ion pipes is, is.

Fuel is put into the furnaces through the inclined passages E, E, which are covered by the doors F, F.

What I claim as my invention and desire to secure by Letters Patent, is

The arrangement of the furnaces A, B, the descending smoke pipes g, g, and the central smoke pipe C, with each other and with the single air heating chamber D, substantially in the manner and for the purpose herein set forth.

The above specification of my new and improved air heating furnace signed and 25 witnessed this 25th day of January 1855.

JAMES H. SUTTON. Witnesses:

CHARLES S. MINOR, ABEL BARKER. 

